Tire valve



May 33 1924.

M. c. SCHWEINERT TIRE VALVE Filed June 2.

By Attorneys, M

Patent ll/Ilay T3, was.

maximrnmn one 1..

scnwnnvnn'r, ornew YORK, n. a.

TIRE VALVE.

Application filed June 2,

To all whomit may concern Be it known that I, MAXIMILIAN CHARLES Somvnmnnr, a citizen of the United States of America, residing in the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Tire Valves, of which the ill following is a specification.

This invention relates to valves for pneumatic tires or'the like of the type comprising a mainv valve casing, a supplemental valve casing which fits 1n the main valve casing below the outer end thereof, a con.-

pling surrounding said supplemental valve casing adapted to be screwed into the main "alve casing which is provided with an internal shoulder for making a' tight joint between the supplemental valve casing and the'main valve casing.

The object of this invention is to provide an improved valve ofthis type.

A valve made in accordance with this invention is characterized in that means are "provided whereby two types of valves may be used either simultaneously or alternatively.

. The drawings filed herewith show 'one form of valvemade in accordance with this invention in which Figure 1 is an elevation partly in diametrical section ofthe complete valve;

Fig. 2 is a cross section on the line 2-2 in Fig. 1, looking in the direction of the arrows;

Fig. 3 is an under side view of the supplemental valve-casing;

Fig. 4-. is a view partly in elevation and partly in section showing the supplemental valve casing detached from the main valve casing;

Fig. 5 is an elevation, partly in diametrical section, of a slight modification 1n which the coupling is loose, that is to say, detachable from the supplemental valve casing.

Referring to Figs. 1 to 4 of the drawings, a is the main va vecasing which is provi'ded with the usual means at its foot for connection with a tire tube. ,The supplemental valve casing b is adapted to fit within the casing w and is provided with a groove 0 for receiving a rubber packm'g washer d. The acking washer d is adapted to contact with a shoulder 9 formed 1n the main valve casing.

Formed integral with the supplemental valve casing are two lugs f f which coact 1922. Serial No. 585,382.-

with two grooves g 9 formed in the main valve casing and thereby prevent rotation of the supplemental valve casing within the main casing. In lieu of thetwo grooves g g the casing may be slotted right through. The supplemental valve casing is ada ted to be forced down onto and withdrawn rom the shoulder a by means of a coupling h. This coupling h is adapted to screw into the interior of the main valve casing and is swivelled to the supplemental valve casing. The supplemental valve casing is formed with a smooth cylindrical wall on its exterior and, at the lower end of the wall, is formed a groove it, which is best made just above the lugs f f. The coupling is further provided with a smooth cylindrical inner wall which coacts with the smooth' exterior wall of the supplemental valve casing. The coupling h and the supplemental valve casing b, are swivelled together by a flange j, which is turned inwardly at the bottom of the coupling and enters the groove h as best shown in Figs. 1 and 4. Preferably the groove h is wider than the flange 9" so that a short longitudinal movement of the parts is permitted.

The supplemental valve casing is threaded at is in the ordinary manner to receive a pump connection or valve cap.

The su plemental valve casing b is provided wit a conical valve seating m at its lower or inner end for receiving a valve check a (Fig. 1) which is preferably a rubber cone mounted on a pin the combination of the two latter elements being known as the dolly pin. The valve check a is shown in full in its operative position and in dotted .lines in its non-operative position.

Instead of-a dolly pin there may be used a plain cone of suitable resilient material; or again a ball valve check may be employed to coact with the seating m. The rubber doll pin is the form of valve check hereto ore most commonly used in European countries.

Referring again to Fig. 1 it will be seen that the supplemental valve casing is open at its top an is adapted to receive through its top the working parts of the form of valve used in the United States of America and Canada. It must be understood that these working parts above referred to are intended to be used simultaneously with the dolly pin, or its equivalents which coact h t 'seating m. These working parts of the form of valve used in the United States of America and Canada comprise (Fig. 1) a valve seat member 0 which carries a washer p adapted to contact with a tapered shoulder 9 formed inthe interior of the supplementary valve casing. The valve seat member 0 is forced onto the shoulder g by a screw member 7. Passing through a hole formed in the valve seat member 0 is a pin a carrying a cup 23 which retains a rubber washer u in position. This rubber washer u in its proper place in the cup t coacts with a seating cformed by the lower end of the valve seat member 0. A spring 2 abuts at one end on the cup t and at the other end on a spring stop 3, the latter be ing preferably non-circular in shape to al: low the passage of air.

Referring to Fig. 5, this shows a slight modification in that the supplemental valve casing is formed with a smooth cylindrical wall on its exterior but no groove is provided therein. The coupling it instead of having an inwardly turned flan is pro-= vided with a smooth cylindrical inner Wall and is readily detachable from the supplemental valve casing.

The ordinary type of pressure gauge, which is applied to the end of the valve, is provided with means for depressing the valve check thus allowing air to have access to the gauge, but it will be seen that In a valve made in accordance with this invention it will be necessary to cause depression of the two valve checks.

This may be accomplished by construct ing the pin of the valve check at of a suit able length whereby the bottom of the pin a may bear thereon when thepin a is depressed. That is to say, when the gauge is applied to the valve it will depress the pin a which will in turn depress the pin of the valve check a,

In a valve made in accordance with this invention should the form of valve normally used in Europe become defective or lost the valve will continue to be air-tight owing to wearer the presence of the working parts of the form of valve used in America or Canada. in the top of the supplemental valve casing; or vice versa, should the working parts'of the valve inserted through the top of the supplemental valve casing become defective or lost the valve will remain air-ti ht owing to the presence of the form of va ve in the seatin m.

Instead 0% using the form of valve nor" mally used in America or Canada, we may employ any other suitable valve check in the top of the supplemental valve casing.

'What I claim is:

1. A tire valve comprising an outer casing, and a supplemental casing fitting therein, provided with two valves, one of the American type and the other of the Continental or European type, the inner of which is adapted to be unseated upon the unseating of the outer valve. e

2. A tire valve com rising an outer casing, and a supplementa casing fitting there in, rovided with two reciprocating valves of ifierent types, one of which is insertible into and re ovable from the top of the sup plemental casing without removing the latter from the outer casing.

3, A tire valve comprising a casing having near one end an enlarged chamber having. a spring actuated valve inside therein, insertible into and removable from the top of the casing as a unit, and near its other end a tapered chamber, fitted with another type of valve. I

4:. In a tire valve or the like, the combination of an outer casing, a supplemental casing non-rotatably mounted therein, a coupling surrounding said supplemental casing and adapted to screw into the outer casing, and said coupling and supplemental casing having the one a groove and the other a flange by which said parts are held swiveled together,

In witness whereof, I have hereunto signed my. name,

MAXEMIILKAN SWK'EWEENERT, 

